ISO/DIS 7431-1

Thiourea for industrial use — Part 1: Test methods

General information

Current stage: 40.20 Effective date: Feb 13, 2023

Originator: ISO

Owner: ISO/TC 47

Type: International Standard

ICS: 71.040.40

Languages: English

Buying

Status: Draft

PDF - EC$183.61

Paper - EC$183.61

PDF and Paper - EC$367.22

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Scope

The document specifies the test method of industrial thiourea property, such as thiourea content, water insoluble substance, ignition residue, initial melting point, turbidity, thiocyanate content, calcium element and heavy metals.
Thiourea structure formula:
Molecular weight: 76,12 (according to international relative atomic mass of 2019)

Life cycle

NOW

IN_DEVELOPMENT
ISO/DIS 7431-1
40.20 DIS ballot initiated: 12 weeks
Feb 13, 2023

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